MoSexOy-Coated 1D TiO2 Nanotube Layers: Efficient Interface for Light-Driven Applications

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dc.contributor.author Ng, Siowwoon
dc.contributor.author Krbal, Miloš
dc.contributor.author Zazpe, Raul
dc.contributor.author Prikryl, Jan
dc.contributor.author Charvot, Jaroslav
dc.contributor.author Dvořák, Filip
dc.contributor.author Strizik, Lukas
dc.contributor.author Slang, Stanislav
dc.contributor.author Sopha, Hanna
dc.contributor.author Kosto, Yuliia
dc.contributor.author Matolin, Vladimir
dc.contributor.author Yam, Fong Kwong
dc.contributor.author Bures, Filip
dc.contributor.author Macak, Jan
dc.date.accessioned 2020-12-04T08:52:16Z
dc.date.available 2020-12-04T08:52:16Z
dc.date.issued 2018
dc.identifier.issn 2196-7350
dc.identifier.uri https://hdl.handle.net/10195/76807
dc.description.abstract Ultrathin molybdenum oxyselenide (MoSexOy) coatings were made first ever by atomic layer deposition (ALD) within anodic 1D TiO2 nanotube layers for photoelectrochemical and photocatalytic applications. The coating thickness was controlled through varying ALD cycles from 5 to 50 cycles (corresponding to ~1 to 10 nm). In the ultraviolet region, the coatings have enhanced up to 4 times the incident photon to current conversion efficiency (IPCE), and the highest IPCE was recorded at 32% at (at λ = 365 nm). The coatings notably extended the photoresponse to the visible spectral region and remarkable improvement of photocurrent densities up to ~40 times was registered at λ = 470 nm. As a result, the MoSexOy coated-TiO2 nanotube layers have shown to be an effective photocatalyst for methylene blue (MB) degradation, and the optimal performance was credited to a coating thickness between 2 to 5 nm (feasible only by ALD). The enhancement in photo-activities of the presented heterojunction is mainly associated with the passivation effect of MoSexOy on the TiO2 nanotube walls and the suitability of bandgap position between MoSexOy and TiO2 interface for an efficient charge transfer. In addition, MoSexOy possesses a narrow bandgap, which favors the photoactivity in the visible spectral region. en
dc.language.iso en
dc.publisher Wiley-Blackwell eng
dc.relation.ispartof Advanced Materials Interfaces. February 2018, vol. 5, iss. 3, article number 1701146 eng
dc.rights open access eng
dc.rights.uri http://creativecommons.org/licenses/by-nc-nd/3.0/cz/ *
dc.subject TiO2 nanotubes eng
dc.subject molybdenum oxyselenide eng
dc.subject TMDCs eng
dc.subject ALD eng
dc.subject photocatalysis eng
dc.title MoSexOy-Coated 1D TiO2 Nanotube Layers: Efficient Interface for Light-Driven Applications eng
dc.type Article eng
dc.peerreviewed yes eng
dc.publicationstatus This is a postprint of an article published in Advanced Materials Interfaces. The final authenticated version is available online at: https://doi.org/10.1002/admi.201701146 or https://onlinelibrary.wiley.com/doi/abs/10.1002/admi.201701146 eng
dc.identifier.doi 10.1002/admi.201701146
dc.relation.publisherversion https://onlinelibrary.wiley.com/doi/abs/10.1002/admi.201701146 eng
dc.project.ID EC/H2020/638857/EU/Towards New Generation of Solid-State Photovoltaic Cell: Harvesting Nanotubular Titania and Hybrid Chromophores/CHROMTISOL
dc.identifier.wos 000424210700014
dc.identifier.scopus 2-s2.0-85036572047


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